One of Thomas Edison's most famous inventions was the phonograph. It was the first machine to record and play sounds. Kids can read this book to find out more about Edison, like how he started a business at age twelve and what he said in his first phonograph recording. Aligned to Common Core Standards and correlated to state standards. Applied to STEM Concepts of Learning Principles. Super Sandcastle is an imprint of Abdo Publishing, a division of ABDO.